\begin{tikzpicture}
    \tkzDefPoints{0/0/B,  2.5/0/C,  1/0/E, 3.5/0/F, 0.8/2/A,  1.8/2/D}

    \tkzDrawPolygon(A,B,C)
    \tkzDrawPolygon(D,E,F)
    \tkzLabelPoints[above](A,D)
    \tkzLabelPoints[below](B,E,C,F)
\end{tikzpicture}

